Boat tiller holder



FIG. 1 is a front, top perspective view of a boat tiller holder showing my new design;

FIG. 2 is a front elevational view thereof, the rear elevational view being a mirror image;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a side elevational view thereof with the opposite side being a mirror image thereof.

The portion of FIGS. 1, 2, 3 and 4 shown in broken lines represent portions of a boat and outboard motor and form no part of the claimed design. 

The ornamental design for a boat tiller holder, as shown and described. 